You discount source ...
I am more interested in the content ...
Ideas and thoughts can arise from previously unknown sources; sometimes timely, brilliant, trite, or refutable etc. While source is of note, it does not make or break the content.
We can adjust our knowledge to encompass an enlarged frame of reference or we can maintain a previous set of thinking. What is the worst thing that can happen?
Suffice it to say, we agree to hold different views.
Nonsense.
If the author of this email is revealed to be a lifelong resident of Illinois, who has never been to Saudi Arabia, never been anywhere near the Middle East, and is neither Muslim nor even Arab--you gotta admit, it would blow the content to hell. It would be fiction. Agenda-driven fiction.
There's nothing in there that screams authenticity; it merely tells me what I want to hear. I could have written this myself. As far as the content itself, there's nothing startling or important or new enough to make me want to overlook the fact that it's an email that hasn't been verified. Anyway, concerning the content itself, it strikes me as the sort of piece that isn't written to change minds, rather to reinforce an existing belief (a belief which I happen to hold already, in case you hadn't guessed). So on the scale of importance, it just doesn't rate very high.